Shade-holder



No. 753,077 PATBNTED B33123, 1904. H. HUBBELL.

SHADE HOLDER.

A'PPLIGATIOII FILED JUNE 11. 1903. N0 MODEL. 2 SHEETS-SHEET .1.

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No. 75s,077. PATENTEDIEB. 2a, 1904.

H. HUBBELL.

SHADE HOLDER.

APPLICATION FILED JUNE 11 1903 2 SHEBT$-SHEET 2 N0 MODEL.

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Patented February 23, 1904:;

PATENT OFFICE.

HARVEY HUBBELL, OF BRIDGEPORT, CONNECTICUT.

SHADE-HOLDER.

SPECIFICATION forming part of Letters Patent No. 753,077, dated February23, 1904.

Application filed June 11, 1903.

T aZZ whom it may concern.-

. Be it known that I, HARVEY HUBBELL, a citizen of the United States,residing at Bridgeport, county of Fairfield, State of Connecticut, haveinvented a new and useful Shade-Holder, of which the following is aspecification.

My invention relates more especially to the class of shade-holders whichare used to attach shades to incandescent-lamp fixtures. It has been aserious objection to this class of shadeholders as heretoforeconstructed that it was impossible to attach them to the shells ofstandard lamp-sockets except by means of ears and clamping-screws. Thepreferable means of attaching shade-holders to socket-shells is by meansof a rolled screw-thread. Standard socket-shells, so called, are not,however, provided with threads. It has therefore been necessaryheretofore either to have specially made socket-shells provided withscrewthreads or else to attach the shade-holders to the shells by theobjectionable ears and clampingscrews. The result has been thatshadeholders having a rolled-thread attachment have not gone intogeneral use, although that means of attachment is far preferable, forthe reason that the standard sockets which are generally in'use are notprovided with'threads. It is one or the objects of this invention toprovide a yielding threaded collar which will automatically engagestandard socket -shells and which will permit the convenient attachmentthereto of threaded shade-holders, thereby doing away with theobjectionable ears and clamping-screws as a means of attachingshadeholders to socket-shells.

It is a further object of the invention to provide means for attachingshades to shade-holders by which I am enabled to entirely dispense withthe unsightly ears and clampingscrews as a means of attaching shades toshadeholders.

With these and other objects in view the invention consists in certainconstructions and in certain parts, improvements, and combinations whichwill be hereinafter fully described and then specifically pointed out inthe claims hereunto appended.

In the accompanyingcdrawings, forming a part of this specification, inwhich like charac- Serial No. 161,017- (No model.)

ters of reference indicate the same parts, Figure lis a sectionalelevation illustrating my novel mode of attaching shade-holders tostandard socket-shells and my novel and preferred mode of attachingshades to shadeholders. Fig. 1 is an enlarged detail Viewcorrespondingwith Fig. 1; Fig. 2, an elevation of a standardsocket-shell, the cap being removed; Figs. 3, 4, and'5, viewsillustrating variant forms of my novel self-attaching threaded collars;Fig. 6, a plan view of a threaded shade-holder detached; Fig. 7, asection on the line 7 '2: in Fig. 6; Fig. 8, a plan view, and Fig. 9 asideelevation, of my novel shade-locking ring detached; and Figs. 10,11,

and 12 are detail sectional views, partly in ele-.

vation, illustrating obvious modifications in the form of my novelself-attaching threaded collars and of the corresponding threadedcollars upon shade-holders, it being understood, of course, that theessential principle in all the forms is a threaded collar that willautomatically engage a standard socket-shell and a shadeholder having athreaded collar that will engage the first-mentioned collar.

20 denotes a standard socket-shell, which is provided near its lower endwith a circumferential rib 21; 22, my novel automaticallyengagingthreaded collar; 31, a shade-holder which may be of any ordinary orpreferred design and is provided with a double-threaded collar 32; 24, ashade which may or course be of any ordinary or preferred design and ispro-- vided with an attaching-neck 25, and 23 my 'the-ribon the shell,and that each be provided with a screw-thread, which I have indicated by26. The collars 22' may be made to attain the result of automaticallygripping the shell by v dividing them vertically across, as in Fig. 5,in

which the opening between the ends of the collar is indicated by 27, orby avertical opening in connection with a' tongue and recess, as inFigs. 1 and 3, in which one end of the collar is shown as provided witha tongue 28 adapted to pass into a corresponding recess 29 in the otherend or by vertical slots 30 extending from the top nearly to the bottom,as in Fig. 4., it being obviously a matter of no special consequencewhether the collars are made yielding, so as to allow them to beexpanded to be slipped over the rib on the socket, and thenself-retaining by contractile force by vertical slots extending from thetop downward or by an opening extending entirely across the ring.

In Figs. 1, 1*, 3, 4, and 5 I have illustrated contractile threadedcollars provided with a circumferential internal groove or depression 39ti) receive the rib 21 on a standard socketshe The operation ofattaching a shade-holder to a standard socket-shell is simply to slip acollar 22 over the rib on the shell where it will automatically contractto place and then turn the shade-holder to place, the threaded collar 32on the shade-holder engaging thread 26 on the contractile collar.

The form illustrated in Fig. 10 differs from the forms illustrated inFigs. 1, 1, 3, 4:, and

5 in that the contractile collar is so shaped as to lie wholly above therib on the shell, it being understood, of course, that in each form thethreaded collar 32 on the shade-holder is made to engage the specialform of contractile collar with which it is to be used.

The form illustrated in Fig. 11 differs in that threaded collar 32 uponthe shade-holder is shown as passing under the contractile collarinstead of on the outer side, as in the other forms.

The form illustrated in Fig. 12 differs from the form in Fig. 11 in thatthe threaded collar 32 upon the shade-holder lies below the arms 33,which support it, said collar 32 engaging the outer side of thread 26 oncontractile collar 22, as in Fig. 11, it being, however, whollyimmaterial in this form whether collar 32 on the shade-holder engagesthe contractile collar internally or externally.

34:, Figs. 10, 11, and 12, denotes lugs upon the shade-holder, and 35set-screws in said lugs for attaching the shade to the shadeholder. Inthe preferred form, however, lugs 34 and set-screws 35 may be dispensedwith, and the shade may be attached to the shadeholder by means ofshade-locking ring 23. The essential features of this shade-locking ringare that it is provided with arms 36, which are adapted to engage theunder side of attaching-neck 25 on the shade, said arms being of coursesufliciently yielding to enable them to be sprung into the positionsshown in Figs. 1 and 1, and with a threaded collar 37 which engagesthread 26 on the contractile collar, as clearly illustrated in Figs. 1and 1*, it being immaterial which of the forms of contractile collarsillustrated in Figs. 3, 4, and

5 is used. To attach a shade to a shadeholder by means of my novelshade-locking ring, the operator simply places the shade in position,the attaching-neck thereof lying in the usual socket 38 in theshade-holder which receives it and then turns collars 37 on theshade-locking ring to place upon threaded collar 32 on the shade-holder.This means of attaching a shade to a shade-holder holds the shade firmlyin place, so that it will not move or rattle, avoids danger of breakingthe shade, enables the attachment to be made much more quickly thanwhere a plurality of screws must be turned in, and makes a much neaterconnection, as the objectionable lugs and setscrews are dispensed with.

Having thus described my invention, I claim 1. A shade-holder comprisinga contractile threaded collar adapted to engage a standard socket-shelland a holder having a threaded collar adapted to engage the saidcontractile collar.

2. A contractile collar for a shade-holder, said collar having externalscrew-threads and having a circumferential internal groove.

3. An internally and externally threaded collar divided across, wherebyit is made capable of expansion and contraction, one end thereof beingprovided with a projecting tongue and the other with a recess to receivethe tongue.

4:. The combination with a standard socketshell having a circumferentialrib, of a contractile threaded collar retained in place by the rib and ashade-holder having a threaded collar which engages the contractilecollar.

5. The combination with a shade-holder having a threaded collar and asocket, and a shade having an attaching-neck adapted to engage thesocket, of a shade-locking ring having a threaded collar adapted toengage the collar upon the shade-holder and integral yielding arms whichengage the under side of the neck of the shade and retain it in place inthe socket.

6. The combination with a socket-shell having a circumferential rib anda contractile threaded collar engaging said shell and retained in placeby the rib, of a shade-holder having a collar provided with a doublethread adapted to engage the contractile collar and a socket, a shadehaving an attaching-neck adapted to engage the socket and a shadelockingring having arms engaging the under side of the neck to retain the neckin the socket and a threaded collar to engage the collar of theshade-holder.

In testimony whereof I aifiX my signature in presence of two witnesses.

HARVEY HUBBELL.

Witnesses:

A. M. WOOSTER, S. W. ATHERTON.

